Photo: Pseudogastromyzon (Public domain) — via Wikimedia Commons
Stoliczka's Barb (Pethia stoliczkana)
A compact, peaceful barb with a bold black shoulder spot and flame-red dorsal — ideal for a calm community or species tank.
Will it live with a Stoliczka's Barb?
We compare each fish against your stoliczka's barb on temperament, size, water parameters and swimming zone. Set your tank size and filter the results.
- Adolf's Cory✅ CompatiblePeaceful · 5.5 cm · Medium care · 22–26 °C (72–79 °F)
- Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Adolf's Cory in a shoal of 6+ or it gets stressed and nippy.
- Axelrod's Cory✅ CompatiblePeaceful · 5 cm · Easy care · 23–28 °C (73–82 °F)
- Both are peaceful, and their water overlaps around 23–26 °C — no size, zone or temperament conflicts.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Axelrod's Cory in a shoal of 6+ or it gets stressed and nippy.
- Bandit Corydoras✅ CompatiblePeaceful · 5 cm · Easy care · 22–27 °C (72–81 °F)
- Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Bandit Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Bloodfin Tetra✅ CompatiblePeaceful · 5.5 cm · Easy care · 18–28 °C (64–82 °F)
- Compatible on the things that matter: shared water near 20–26 °C, workable temperaments, and no predator-and-prey size gap.
- Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Bloodfin Tetra in a shoal of 6+ or it gets stressed and nippy.
- Blue Turbo Snail✅ CompatiblePeaceful · 5 cm · Medium care · 25–30 °C (77–86 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Checkered Barb✅ CompatiblePeaceful · 5 cm · Easy care · 20–25 °C (68–77 °F)
- Compatible on the things that matter: shared water near 20–25 °C, workable temperaments, and no predator-and-prey size gap.
- Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Checkered Barb in a shoal of 6+ or it gets stressed and nippy.
- Cherry Barb✅ CompatiblePeaceful · 5 cm · Easy care · 23–27 °C (73–81 °F)
- Compatible on the things that matter: shared water near 23–26 °C, workable temperaments, and no predator-and-prey size gap.
- Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Cherry Barb in a shoal of 6+ or it gets stressed and nippy.
- Cochu's Blue Tetra✅ CompatiblePeaceful · 5 cm · Medium care · 22–28 °C (72–82 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Cochu's Blue Tetra in a shoal of 8+ or it gets stressed and nippy.
- Firehead Tetra✅ CompatiblePeaceful · 5 cm · Medium care · 24–28 °C (75–82 °F)
- Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
- Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Firehead Tetra in a shoal of 8+ or it gets stressed and nippy.
- Five-banded Barb✅ CompatiblePeaceful · 5 cm · Easy care · 23–27 °C (73–81 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Five-banded Barb in a shoal of 6+ or it gets stressed and nippy.
- Forktail Blue-eye✅ CompatiblePeaceful · 5 cm · Easy care · 22–28 °C (72–82 °F)
- Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Forktail Blue-eye in a shoal of 6+ or it gets stressed and nippy.
- Half-striped Penguin Tetra✅ CompatiblePeaceful · 5 cm · Medium care · 23–28 °C (73–82 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Half-striped Penguin Tetra in a shoal of 6+ or it gets stressed and nippy.
- Harlequin Rasbora✅ CompatiblePeaceful · 5 cm · Easy care · 23–28 °C (73–82 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Harlequin Rasbora in a shoal of 6+ or it gets stressed and nippy.
- Honey Gourami✅ CompatiblePeaceful · 5 cm · Easy care · 22–28 °C (72–82 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Horseman Cory✅ CompatiblePeaceful · 5 cm · Medium care · 22–26 °C (72–79 °F)
- Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Horseman Cory in a shoal of 6+ or it gets stressed and nippy.
- Japanese Trapdoor Snail✅ CompatiblePeaceful · 5 cm · Easy care · 10–28 °C (50–82 °F)
- Compatible on the things that matter: shared water near 20–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Julii Corydoras✅ CompatiblePeaceful · 5 cm · Easy care · 23–26 °C (73–79 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Julii Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Masked Corydoras✅ CompatiblePeaceful · 5 cm · Easy care · 22–28 °C (72–82 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Masked Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Mystery Snail✅ CompatiblePeaceful · 5 cm · Easy care · 20–28 °C (68–82 °F)
- Both are peaceful, and their water overlaps around 20–26 °C — no size, zone or temperament conflicts.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Panda Corydoras✅ CompatiblePeaceful · 5 cm · Medium care · 20–26 °C (68–79 °F)
- Compatible on the things that matter: shared water near 20–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Panda Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Rummy-nose Tetra✅ CompatiblePeaceful · 5 cm · Medium care · 23–29 °C (73–84 °F)
- Compatible on the things that matter: shared water near 23–26 °C, workable temperaments, and no predator-and-prey size gap.
- Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Rummy-nose Tetra in a shoal of 6+ or it gets stressed and nippy.
- Skunk Corydoras✅ CompatiblePeaceful · 5 cm · Easy care · 22–26 °C (72–79 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Xingu Black Neon Tetra✅ CompatiblePeaceful · 5 cm · Medium care · 24–28 °C (75–82 °F)
- Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Xingu Black Neon Tetra in a shoal of 8+ or it gets stressed and nippy.
- Zebra Danio✅ CompatiblePeaceful · 5 cm · Easy care · 18–25 °C (64–77 °F)
- Compatible on the things that matter: shared water near 20–25 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
- Amano Shrimp⚠️ With cautionPeaceful · 5 cm · Easy care · 18–28 °C (64–82 °F)
- Stoliczka's Barb may eat Amano Shrimp or pick off its shrimplets — a densely planted tank with moss gives them a fighting chance.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Black Ruby Barb⚠️ With cautionSemi-aggressive · 6 cm · Easy care · 22–26 °C (72–79 °F)
- Expect Black Ruby Barb to harass Stoliczka's Barb at times; give dense cover and watch them at feeding.
- Your 75 L tank is below the ~100 L this pairing really wants — crowding raises aggression.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Black Ruby Barb in a shoal of 6+ or it gets stressed and nippy.
- Black Skirt Tetra⚠️ With cautionSemi-aggressive · 6 cm · Easy care · 20–26 °C (68–79 °F)
- Black Skirt Tetra is semi-aggressive and may chase or nip the smaller Stoliczka's Barb — plant heavily and break up sight lines.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Black Skirt Tetra in a shoal of 6+ or it gets stressed and nippy.
- Chocolate Gourami⚠️ With cautionPeaceful · 5 cm · Hard care · 25–30 °C (77–86 °F)
- Different pH ranges (6.5–7.5 vs 4–6); doable if you sit in the shared band, but not ideal long-term.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Chocolate Gourami in a shoal of 6+ or it gets stressed and nippy.
- Desert Goby⚠️ With cautionSemi-aggressive · 6 cm · Easy care · 18–28 °C (64–82 °F)
- Expect Desert Goby to harass Stoliczka's Barb at times; give dense cover and watch them at feeding.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Dwarf Chain Loach⚠️ With cautionPeaceful · 6 cm · Medium care · 24–29 °C (75–84 °F)
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
- Eastern Betta⚠️ With cautionSemi-aggressive · 6 cm · Medium care · 24–28 °C (75–82 °F)
- Eastern Betta and Stoliczka's Barb are close in size, but the semi-aggressive one tends to dominate — add stoliczka's barb in a group to spread the pressure.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- GloFish Tetra⚠️ With cautionSemi-aggressive · 6 cm · Easy care · 21–28 °C (70–82 °F)
- Expect GloFish Tetra to harass Stoliczka's Barb at times; give dense cover and watch them at feeding.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep GloFish Tetra in a shoal of 6+ or it gets stressed and nippy.
- Humpbacked Tetra⚠️ With cautionSemi-aggressive · 5 cm · Hard care · 24–28 °C (75–82 °F)
- Expect Humpbacked Tetra to harass Stoliczka's Barb at times; give dense cover and watch them at feeding.
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Humpbacked Tetra in a shoal of 8+ or it gets stressed and nippy.
- Morse Code Corydoras⚠️ With cautionPeaceful · 5 cm · Medium care · 23–26 °C (73–79 °F)
- Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Morse Code Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Odessa Barb⚠️ With cautionSemi-aggressive · 6 cm · Easy care · 20–26 °C (68–79 °F)
- Expect Odessa Barb to harass Stoliczka's Barb at times; give dense cover and watch them at feeding.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Odessa Barb in a shoal of 6+ or it gets stressed and nippy.
- Peaceful Betta⚠️ With cautionSemi-aggressive · 6 cm · Medium care · 24–28 °C (75–82 °F)
- Expect Peaceful Betta to harass Stoliczka's Barb at times; give dense cover and watch them at feeding.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Silvertip Tetra⚠️ With cautionSemi-aggressive · 5 cm · Easy care · 22–28 °C (72–82 °F)
- Expect Silvertip Tetra to harass Stoliczka's Barb at times; give dense cover and watch them at feeding.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Keep Silvertip Tetra in a shoal of 6+ or it gets stressed and nippy.
- Spotfin Betta⚠️ With cautionSemi-aggressive · 5 cm · Medium care · 23–28 °C (73–82 °F)
- Spotfin Betta and Stoliczka's Barb are close in size, but the semi-aggressive one tends to dominate — add stoliczka's barb in a group to spread the pressure.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Striped Red-Eye Puffer⚠️ With cautionAggressive · 5 cm · Hard care · 24–28 °C (75–82 °F)
- Striped Red-Eye Puffer is aggressive and may chase or nip the smaller Stoliczka's Barb — plant heavily and break up sight lines.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Wine Red Betta⚠️ With cautionAggressive · 5 cm · Medium care · 24–28 °C (75–82 °F)
- Wine Red Betta and Stoliczka's Barb are close in size, but the aggressive one tends to dominate — add stoliczka's barb in a group to spread the pressure.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Alligator Gar⛔ Not recommendedAggressive · 250 cm · Hard care · 24–28 °C (75–82 °F)
- Alligator Gar (250 cm) is big enough to swallow the 5 cm Stoliczka's Barb whole.
- Alligator Gar clearly outsizes Stoliczka's Barb and is aggressive; risky unless the tank is big and well-planted.
- Your 75 L tank is below the ~3785 L this pairing really wants — crowding raises aggression.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Clown Knifefish⛔ Not recommendedAggressive · 90 cm · Hard care · 24–28 °C (75–82 °F)
- Stoliczka's Barb is bite-sized to a 90 cm predatory clown knifefish — it will be eaten.
- Expect Clown Knifefish to harass Stoliczka's Barb at times; give dense cover and watch them at feeding.
- Your 75 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Fire Eel⛔ Not recommendedSemi-aggressive · 100 cm · Medium care · 24–28 °C (75–82 °F)
- Stoliczka's Barb is bite-sized to a 100 cm predatory fire eel — it will be eaten.
- Fire Eel is semi-aggressive and may chase or nip the smaller Stoliczka's Barb — plant heavily and break up sight lines.
- Your 75 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Koi⛔ Not recommendedPeaceful · 90 cm · Medium care · 4–28 °C (39–82 °F)
- Stoliczka's Barb is bite-sized to a 90 cm koi — it will be eaten.
- Your 75 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Redtail Catfish⛔ Not recommendedAggressive · 120 cm · Hard care · 24–27 °C (75–81 °F)
- Stoliczka's Barb is bite-sized to a 120 cm predatory redtail catfish — it will be eaten.
- Expect Redtail Catfish to harass Stoliczka's Barb at times; give dense cover and watch them at feeding.
- Your 75 L tank is below the ~5700 L this pairing really wants — crowding raises aggression.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Spotted Gar⛔ Not recommendedAggressive · 90 cm · Hard care · 18–26 °C (64–79 °F)
- Size gap is too large (90 vs 5 cm): Spotted Gar will treat Stoliczka's Barb as food.
- Expect Spotted Gar to harass Stoliczka's Barb at times; give dense cover and watch them at feeding.
- Your 75 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Wels Catfish⛔ Not recommendedAggressive · 300 cm · Hard care · 15–25 °C (59–77 °F)
- Wels Catfish (300 cm) is big enough to swallow the 5 cm Stoliczka's Barb whole.
- Expect Wels Catfish to harass Stoliczka's Barb at times; give dense cover and watch them at feeding.
- Your 75 L tank is below the ~20000 L this pairing really wants — crowding raises aggression.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
- Wolf Cichlid⛔ Not recommendedAggressive · 72 cm · Hard care · 24–30 °C (75–86 °F)
- Size gap is too large (72 vs 5 cm): Wolf Cichlid will treat Stoliczka's Barb as food.
- Wolf Cichlid is aggressive and may chase or nip the smaller Stoliczka's Barb — plant heavily and break up sight lines.
- Your 75 L tank is below the ~760 L this pairing really wants — crowding raises aggression.
- Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
Compatibility is computed from each species' care data — a strong starting point, not a guarantee. Individual temperament varies, so always introduce new fish slowly and watch them.
Stoliczka's Barb care specs
- Care level
- Easy
- Breeding
- Medium
- Max size
- 5 cm (2 in)
- Min tank size
- 60 L (15.9 gal)
- Temperature
- 20–26 °C (68–79 °F)
- pH
- 6.5–7.5
- Hardness
- 4–15 dGH
- Lifespan
- 3–5 years
- Diet
- Omnivore
- Swim level
- Middle
- Group size
- 6+ (shoaling)
- Family
- Cyprinidae
- Origin
- South and Southeast Asia — Mekong, Irrawaddy, Salween, Meklong and upper Chao Phraya basins (Myanmar, Thailand, Laos, India)
What is a Stoliczka’s Barb?
Stoliczka’s Barb (Pethia stoliczkana), also called the Sunspot Barb, is a small cyprinid named after the Czech-Austrian naturalist Ferdinand Stoliczka. Native to several major river systems of South and Southeast Asia, it grows to around 5 cm (2 in) and is immediately recognisable by two vertically elongated black blotches set against a silver-green body — one just behind the gill cover and one on the caudal peduncle. In breeding males, the dorsal fin blazes red with dark margins and rows of black spots, making this one of the more striking nano barbs available in the hobby. The species was long classified as Puntius stoliczkanus or Barbus stoliczkanus before revision moved it to the genus Pethia.
In temperament, Stoliczka’s Barb stands apart from the nippier barb relatives often sold alongside it. It is a genuinely peaceful schooling fish that spends most of its time cruising the middle water column in tight formation. Kept correctly — in a group of at least six — it rewards the keeper with constant, purposeful activity and the visual payoff of fully coloured males displaying to one another without causing any damage. It is a solid choice for a planted temperate community and well suited to first-time barb keepers.
Where does Stoliczka’s Barb come from?
Wild populations range across a broad swathe of South and Southeast Asia — the Mekong, Irrawaddy, Salween, Meklong, and upper Chao Phraya river basins, covering parts of Myanmar, Thailand, Laos, and northeastern India. Across this range the fish inhabit clear, well-oxygenated rivers and streams with moderate current, sandy or fine-gravel substrates, and bankside vegetation that provides shade and spawning sites. Water in these systems tends to be cooler than many tropical aquarium fish prefer, soft to moderately hard, and close to neutral pH — a point that has direct consequences for tank setup.
Understanding this origin matters for replication: Stoliczka’s Barb is not a warm, blackwater species, nor is it from still or sluggish habitat. It wants flow, oxygen, and a temperature range that sits on the lower end of what most aquarium heaters are set to maintain.
What tank size and setup does Stoliczka’s Barb need?
A group of six requires a minimum of 60 litres (16 gallons), and a longer footprint is preferable to a tall one — these are active mid-water swimmers that appreciate horizontal swimming space. For a group of eight to ten, a 90-litre (24-gallon) tank is more comfortable and makes the schooling behaviour genuinely impressive.
Substrate should be fine gravel or coarse sand. Dense planting along the sides and back of the tank, with open water in the centre for free swimming, closely mirrors riverbank habitats. Java fern, Cryptocoryne species, and Vallisneria all work well and tolerate the cooler conditions this species prefers. A moderate current from a hang-on-back or canister filter benefits the fish, but avoid powerful flow that pins them to one end of the tank. Good oxygenation — whether from surface agitation or a gentle airstone — is appreciated. A secure lid is worth fitting; like many small cyprinids, Stoliczka’s Barb will occasionally jump.
What water parameters does Stoliczka’s Barb need?
- Temperature: 20–26 °C (68–79 °F). This cooler range is a defining trait of the species; avoid keeping it in a warm tropical setup intended for discus or Ram cichlids.
- pH: 6.5–7.5, leaning soft to neutral.
- Hardness: 4–15 dGH. Soft to moderately hard water is well tolerated; very hard or alkaline tap water may stress the fish over time.
Cycle the tank fully before introducing fish. Weekly water changes of 25–30% maintain water quality without destabilising parameters. Stability is more important than chasing precise figures — sudden swings in temperature or pH are more damaging than sitting slightly outside the ideal range in a steady tank. If your tap water runs hard and alkaline, consider blending with RO water to bring it within the preferred range.
What does Stoliczka’s Barb eat?
Stoliczka’s Barb is an omnivore with a broad palate in the wild, picking at small invertebrates, algae, plant material, and organic detritus. In the aquarium it accepts most foods readily. A high-quality small flake or micro-pellet makes a practical staple; supplement this two or three times a week with live or frozen foods — daphnia, baby brine shrimp, micro-worms, and small bloodworms are all taken eagerly and do the most to bring males into full colour.
Feed small portions once or twice a day — only what the fish can consume in two to three minutes — and remove any uneaten food promptly to keep the water clean. Offering a varied diet rather than relying on a single food type keeps the immune system robust and the colours vivid.
What is Stoliczka’s Barb’s behaviour and compatibility like?
Stoliczka’s Barb is one of the more peaceful barbs in the hobby. It is not a confirmed fin-nipper under normal conditions, though any barb kept in a small group may show opportunistic nipping. Maintaining a school of six or more channels the fish’s energy into social display and reduces any tendency toward harassment of tank-mates. Smaller groups often produce more skittish, less impressive fish.
Good companions share a preference for cooler, moderately soft water and occupy different tank zones. Peaceful bottom-dwellers such as Corydoras, Aspidoras, or smaller loach species work well; surface fish like hatchetfish are compatible. Other small, similarly peaceful schooling cyprinids — danios, rasboras, or other Pethia barbs of comparable size — make natural tank-mates. Avoid slow-moving or very long-finned species, and do not combine with significantly larger, aggressive fish that would intimidate or predate the barbs.
For a full, filterable list of compatible and incompatible species, see Stoliczka’s Barb tank mates.
How do you tell male from female Stoliczka’s Barb?
Sexing adults is relatively straightforward once the fish are mature and in good condition. Males are the showier sex: slimmer in the body, with a bright red dorsal fin marked by black spots and a dark margin — the feature that makes this species worth keeping. Colour intensifies when males display to one another or are conditioned on live foods. Females are deeper-bodied, particularly when gravid, with a plainer dorsal fin that lacks the red and carries little or no spotting. Both sexes retain the characteristic black shoulder and caudal-peduncle blotches.
Juveniles are essentially identical in appearance; reliable sexing is only possible once fish approach adult size, typically after three to four months of good growth.
How do you breed Stoliczka’s Barb?
Breeding Stoliczka’s Barb is achievable in a home aquarium but requires some preparation, placing it at medium difficulty. Condition a pair or a small group of males and females separately on live and frozen foods for one to two weeks before introducing them to a dedicated breeding tank of around 30–40 litres (8–10 gallons). The breeding tank should have soft, slightly acidic water — pH around 6.5–7.0, temperature toward the upper end of the range at 24–26 °C (75–79 °F) — and fine-leaved plants or a spawning mop in which eggs can lodge away from the parents.
Spawning is a scatter-and-abandon strategy: the pair or group spawn among plant material and take no further interest in the eggs or fry. Eggs hatch within 24–48 hours and the fry are free-swimming after another two to three days. Remove the adults as soon as spawning is observed to prevent egg predation. First foods for fry include infusoria and powdered fry food, progressing to baby brine shrimp nauplii as the fry grow.
What diseases are common in Stoliczka’s Barb?
Stoliczka’s Barb is a robust species when kept in appropriate conditions, and disease is most often a consequence of poor water quality, incorrect temperature, or stress from inadequate group size or incompatible tank-mates. The most common issues to watch for are:
- Ich (white spot): Small white granules resembling salt across the body and fins, often triggered by a sudden temperature drop or the introduction of new fish. Raise temperature gradually to the upper end of the range and perform increased water changes at the first sign.
- Fin rot: Ragged or receding fin edges, almost invariably caused by chronically poor water quality or physical damage. Address the root cause — water chemistry and filtration — before any other intervention.
- Velvet (Oodinium): A fine gold or rust-coloured dusting on the skin, harder to spot than ich. Infected fish often rub against surfaces. Dimmed lighting and improved water quality form the first line of response.
- Fungal infections: Fluffy white patches, usually secondary to wounds or stress. Quarantine affected fish and review tank conditions.
The best prevention across all these diseases is a fully cycled tank, stable temperature within the 20–26 °C range, regular water changes, and quarantining new arrivals for two to four weeks before introducing them to the display tank.
Health note: medication dosing and clinical disease diagnosis are beyond the scope of a care profile. For a sick fish, confirm symptoms against a reputable veterinary or specialist fish-health source before treating.
How long does Stoliczka’s Barb live?
A well-maintained Stoliczka’s Barb lives 3–5 years. The upper end of that range is achievable with consistent water quality, a varied diet, appropriate group size, and compatible tank-mates that keep stress low. Fish purchased from a reputable source as healthy juveniles have the best prospects; wild-caught individuals or stock that has been held in poor conditions at the retailer will likely not reach their potential. Good care is straightforward for this species — the main requirements are cool, clean water and the company of its own kind.
Frequently asked questions
Is Stoliczka's Barb the same as the Rosy Barb?
No. Both belong to the genus Pethia but they are separate species. The Rosy Barb (Pethia conchonius) grows to around 14 cm and originates from northeast India; Stoliczka's Barb tops out at 5 cm and has a distinctive black shoulder spot rather than a rosy body flush.
Can Stoliczka's Barb go in a community tank?
Yes — it is one of the more peaceful small barbs. Keep it in groups of six or more to encourage natural schooling and reduce any fin-nipping tendency. Avoid slow-finned or very long-finned tank-mates, and pair it with species that share its preference for cooler, soft-to-moderately-hard water.
What you need to keep a stoliczka's barb
The baseline is a heated, filtered 60 L+ tank: a reliable heater to hold 20–26 °C (68–79 °F), a gentle filter that won't batter a stoliczka's barb in the current, and a tight-fitting lid. Cycle the tank fully before adding any fish.
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